Ventilator



Patented July 12, 1938 UNITED D' STATES VENTILATOR Solomon Sigal, Brooklyn, N. Y., assignor to Adjustable Louver Corporation, New York, N. Y., a corporation of New York Application July 9, 1936, Serial No. 89,710

5 Claims.

My invention relates to ventilators, particularly such as are intended for use in buildings, and has for its object to provide an improved construction of great simplicity and effectiveness,

5 which will permit ready adjustment of the device to either the open or the closed position.

Other features of the invention will appear from the description following hereinafter.

Without desiring to restrict myself to the particular details illustrated, I will now explain a typical satisfactory embodiment of my invention, with reference to the accompanying drawing, in which Fig. 1 is an elevation of my improved ventilator, with parts broken away and parts in sec- 15 tion; Fig. 2 is a view similar to Fig. 1, but looking in the opposite direction; Fig. 3 is a vertical section through the central portion of Fig. 1, upon an enlarged scale; Fig. 4 is a horizontal section on line 4-4 of Fig. 3, and Fig. 5 is a detail ele- 20 vation illustrating a different position of the parts shown at the central bottom portion of Fig. 2. The ventilator represented in the drawing comprises a stationary member or casing having ventilating passages, a movable member controlling 25 said passages, and mechanism for controlling said movable member.

In the example illustrated, the stationary member or casing consists of a rectangular frame IIJ adapted to be set in a suitable opening, wherever 30 the ventilator is to be located, for instance in the wall W of a building. A ange member II projecting outwardly beyond the frame I0 forms a stop to secure a proper positioning of the casing within the opening of the wall or other structure 35 to which the ventilator is secured. When the ventilator is to be set within a brick wall, I prefer to provide a plurality of suitable pockets or recesses in each of the four members (top, bottom, and both sides) of the rectangular frame 40 IIJ, for instance as indicated at I0'. These re- I cesses or pockets will receive some of the mortar applied to the inside of the wall opening, and such mortar when hardened or set will form keys holding the ventilator casing in place securely.

When the frame Ill is made of sheet metal, as

illustrated, the recesses or pockets IIJ are preferably formed by a stamping or like operation which bends the material, as shown best in Fig. 4 and at the upper portion of Fig. 3. These pock- 50 ets may be of hemispherical or any other suitable shape.

Within the frame I0 I have shown a series of superposed spaced, transversely horizontal members or louvres which are suitably secured to said 55 frame so as to be rigid therewith. In the particular embodiment illustrated, each of the louvres has a vertical upper portion I2, a vertical lowerA portion I2' with an inwardly extending flange I2 and an inclined, preferably curved o portion I2a which connects the lower edge of the upper portion I2 with the upper edge of the lower portion I2. The lower portion I2', at its ends, abuts against the ange member II of the frame III and is suitably secured thereto. When the ventilator is set in the outer wall of a building or other structure, the flange member II will be located on the outside, so that the inclined portions I2 will shed outwardly any rain that may strike the louvres.

Within the frame I 0 are located at each side thereof, stationary vertical guides I3 and I3' which are spaced to receive between' them the vertical edge portions I4' of a movable member or shutter. This shutter may consist of a rectangular frame, of which the edge portions I4 are the side members and which in addition has slat members I4 which extend transversely from side to side in a horizontal direction as shown best in Figs. 2, 3, and 4. The slat members I4 are in a vertical plane different from that of the edge portions I4', as shown best in Fig. 4, and are adapted to move close to, or even in actual contact with, the vertical upper portions I2 of the louvres. The height of the slat members I4 is preferably approximately equal to that of the vertical portions I2, and the spaces between adjacent slat members I4 as well as the spaces between the upper portions I2 of two adjacent louvres, are preferably about equal to the height of the slat members I4. 'I'hus in the position illustrated by Fig. 3, the slat members will clear the spaces between adjacent louvres, so that the Ventilating passages between the louvres will be fully open. It will also be understood from Fig. 3, that by lifting the movable member having the slats I4, said slats can be brought to a position in which they close the Ventilating passages.

The mechanism for moving the slats I4 is constructed as follows: At the lower central portion of the frame I0 there is secured thereto a bracket I5 having a boss I5' extending horizontally in a direction from front to rear. In this bracket is journalled a shaft I6 to the outer end of which is secured rigidly an operating member or handle I'I. As shown in Fig. 1, this operating member is provided at its ends with a pair of upwardly extending hooks I1 and also with a pair of downwardly extending hooks I1". By inserting a. suitable tool, such as a pole having a projecting stud at its end, into one or the other of these hooks, and then pushing or pulling with the pole, as the case may be, the shaft I6 may be given a rocking movement. Such movement may also be obtained in other ways, if desired, for instance by means of chains connected with the operating member I1, and in Fig. 1 I have indicated two pairs of openings Il at which actuating chains may be connected with the operating member I1. At its inner end, the shaft I 6 carries rigidly a crank member I8 having a pivotal 

